33results about How to "Reduce conduction resistance" patented technology

The present invention relates to a separator for a non-aqueous secondary battery, and a non-aqueous secondary battery. The present invention provides a separator with good adhesion with an electrode based on drying hot pressing and with excellent adhesion with the electrode if even the separator for the non-aqueous secondary battery is dipped into electrolyte, or a separator for a non-aqueous secondary battery with good adhesion with the electrode based on drying hot pressing and with low ion conduction resistance. The separator for the non-aqueous secondary battery has a porous substrate, andan adhesive porous layer that is provided on one side or both sides of the porous substrate and contains an acrylic type resin and a polyvinylidene fluoride type resin, the acrylic type resin is a copolymer containing an acrylic type monomer and a styrene type monomer as monomer components, and a second monoacrylate type monomer that has an oxyalkylene structural unit with a repetition number offrom 2 to 10,000.

A display device is disclosed, which comprises: a first substrate; a first insulating layer disposed on the first substrate; a second insulating layer disposed on the first insulating layer; and a patterned metal layer disposed on the second insulating layer and comprising plural conductive lines, wherein an opening region is located between two adjacent conductive lines to expose the second insulating layer, and a thickness of the second insulating layer under the conductive lines of the patterned metal layer is larger than that exposed from the opening region.

The present invention provides a touch panel, comprising a substrate, a plurality of first conductive units, a plurality of second conductive units and a plurality of insulation patterns. Each first conductive unit comprises a plurality of first electrodes. Each second conductive unit comprises a plurality of second electrodes. Each first electrode comprises a first sub electrode and a second sub electrode which are stacked on the substrate in order. Each second electrode comprises a third sub electrode and a fourth sub electrode which are stacked on the substrate in order. The first sub electrodes and the third sub electrodes belong to a first conductive layer, and the second sub electrodes and the fourth sub electrodes belong to a second conductive layer. The first conductive layer has a plurality of differences. The differences are at least positioned at the boundaries of the first conductive units and the insulation patterns.

The invention relates to a preparation method for a proton-conducting membrane, and belongs to the technical field of ion exchange membranes. The preparation method is characterized in that dimethyl sulfoxide is adopted to dissolve polyvinylidene fluoride and sodium allylsulfonate monomer containing proton conducting functional group; a flow casting method is adopted to form a membrane on a smooth solid surface through flow casting; the sodium allylsulfonate monomer is initiated to carry out polyreaction; and the products of the polyreaction and polyvinylidene fluoride molecular chain are formed into the proton-conducting membrane of macromolecular interpenetrating network structure. The preparation method can obtain an ion exchange membrane material with ideal proton conductibility, and overcomes the disadvantage that the prior melting mould pressing process cannot prepare homogeneous phase ion exchange membranes; moreover, the preparation method has the advantages of simple technological process, easy industrial scaling up and the like.

The invention belongs to photoelectric cell electrode materials, and discloses a preparation method of dye-sensitized solar cell paste. It consists of the following steps: (1) preparing titanium dioxide powder, (2) preparing slurry, (3) curing the slurry and (4) concentrating the slurry; the dye-sensitized solar cell slurry obtained by the method has good film-forming property, The dispersion of particles in the slurry is good, the film layer does not crack after sintering, and the film has strong adhesion to the substrate after sintering; the method has low manufacturing cost, green and environmentally friendly manufacturing process, and the obtained composite film has excellent conductivity, which provides a solid foundation for large-scale industrial production. Easy way.

The invention discloses a novel block anion exchange membrane. A block main chain of the anion exchange membrane contains a bending unit (biphenyl fluorene) and a twisting unit (phthalazinone); according to the structure, a non-coplanar effect can be enhanced. A preparation method of the anion exchange membrane comprises the following steps of performing polycondensation on decafluorobiphenyl (slightly excessive) and bisphenol fluorine to prepare an oligomer 1; using the decafluorobiphenyl and 4-(4-hydroxyphenyl)-2,3-phthalazine-1-one to prepare an oligomer 2; polymerizing the oligomer 1 with the oligomer 2 to obtain a polymer main chain, and performing ionization treatment, membrane casting and alkali treatment on a chloromethylation main chain to obtain the anion exchange membrane. The anion exchange membrane has better chemical stability, and higher electric conductivity and resistance to swelling, and is suitable for being applied in the aspect of alkaline fuel cells.

The invention provides a preparation method of a membrane electrode, comprising: coating the catalyst slurry on both surfaces of an anion exchange membrane and performing cross-linking treatment to obtain a basic film-coated electrode; placing the basic film-coated electrode in the cathode and anode gas diffusion Hot pressing is performed between the layers to obtain a membrane electrode; the catalyst slurry contains an anion exchange resin with the same components as the anion exchange membrane, and the anion exchange resin has a group capable of crosslinking. The preparation method of the membrane electrode provided by the invention has the same composition as that of the anion exchange resin in the catalytic layer, both of which have groups capable of crosslinking, and are formed by crosslinking the anion exchange membrane and the catalytic layer An overall cross-linked membrane-covered electrode, the membrane electrode prepared by this post-crosslinking method has high mechanical strength, and can also reduce the OH between the cathode and anode catalyst layer and the anion exchange membrane in the membrane electrode. ‑ conduction resistance.

The invention provides a fluorinated graphene modified lithium titanate material and a preparation method thereof. A fluorinated graphene-modified lithium titanate material, which is composed of fluorinated graphene and lithium titanate; the mass fraction of lithium titanate in the overall material is 55%-98%, and the better one is 62%- 97%, optimally 70%‑94%. The surface of the material contains C‑F‑Ti bonds and F‑Ti bonds; lithium titanate accounts for 55%‑98% of the overall material, carbon accounts for 1%‑25% of the overall material, and fluorine accounts for the overall The mass fraction of the material is 0.2%-20%; better: the mass fraction of lithium titanate in the overall material is 62%-97%, the mass fraction of carbon element in the overall material is 2%-20%, and the fluorine element accounts for the overall material The mass fraction of lithium titanate is 0.5%-18%; optimal: lithium titanate accounts for 70%-94% of the overall material, carbon accounts for 5%-18% of the overall material, and fluorine accounts for 70%-94% of the overall material. The mass fraction is 0.8%‑15%.

The invention provides a large-capacity nickel-hydrogen square battery with low internal resistance. The large-capacity nickel-hydrogen square battery comprises a shell containing electrolyte, and a plurality of positive plates and a plurality of negative plates which are soaked in the electrolyte, wherein the peripheral edges of each positive plate and negative plate are respectively provided with a flow guiding body; the positive plates and the negative plates are arranged at intervals; and the adjacent electrode plates are separated by an insulated diaphragm; the flow guiding body on the positive plate is connected with a positive post assembly; and the flow guiding body on the negative plate is connected with a negative post assembly; the large-capacity nickel-hydrogen square battery with low internal resistance is characterized in that each positive plate is less than 0.4 mm thick, each negative plate is less than 0.25mm thick, and the positive post assembly is as thick as the negative post assembly; the long sides of each positive plate and each negative plate are respectively provided with the flow guiding body, or the length of the flow guiding body is not smaller than one half of the perimeter of each positive plate or each negative plate. The large-capacity nickel-hydrogen square battery with low internal resistance has small charge diffusion resistance in a charging process, reduces the voltage, and is not easy to generate gassing; moreover, the thickness of the electrode plate is reduced to lead deep active substance timely participate in a chemical reaction, so that the internal resistance of the battery is reduced.

The present invention relates to the field of microalgae culture, and discloses a microalgae population culture device and a microalgae culture method. The microalgae population culture device comprises: a cylinder body of a cylindrical hollow structure with an opening at the top end; a cylinder cover; a driving structure; a combined rod which comprises a rod body, a first inflation channel and a first light bar; a central column which comprises a column body, a second inflation channel and a second light bar; a compression fan which is arranged on the column body and communicates with the first inflation channel and the second inflation channel; a power source which is arranged on the column body and electrically connected with the driving structure, the first light bar and the second light bar. Through the arrangement of the technical scheme, the light distribution is uniform; the aeration range is wide and uniform, and the vortex-shaped water flow state and floating bubbles can prevent microalgae cells from settling and reduce wall attachment and bottom sinking in cooperation with the stirring effect; other foreign microalgae or organisms are prevented from entering the culture system, and the structure is compact and cleaning is convenient.

The invention relates to a preparation method of an lipophilic sulfur electrode. Silicone oil is permeated into the inside of a positive electrode porous electrode, and a porous lipophilic sulfur electrode is prepared after drying. The mass content of silicone oil in the lipophilic sulfur electrode is 0.2-30%; The lipophilicity allows the electrolyte to infiltrate evenly into the electrode, especially in the high-load sulfur electrode to effectively realize the conduction of lithium ions, thereby ensuring the electrochemical performance of high-load elemental sulfur. Moreover, the silicon-oxygen bond contained in silicone oil can effectively bind lithium polysulfides during the discharge process, inhibiting the self-discharge phenomenon caused by polysulfide dissolution shuttling, thereby achieving the purpose of improving the coulombic efficiency and cycle stability of lithium-sulfur batteries.

The invention provides a fluorinated graphene modified niobium pentoxide material, a preparation method and application thereof. A fluorinated graphene modified niobium pentoxide material, which is composed of fluorinated graphene and niobium pentoxide; the mass fraction of niobium pentoxide in the overall material is 55%-98%, and the better one is 62%‑97%, optimally 70%‑94%. The surface of the material contains C‑F‑Nb bonds and F‑Nb bonds, niobium pentoxide accounts for 55%‑98% of the overall material, carbon accounts for 1%‑25% of the overall material, and fluorine accounts for The mass fraction of the overall material is 0.2%‑20%.

The invention provides a method for preparing an interpenetrating network type conducting film of polyion liquid, belonging to the technical field of production of a high polymer conducting film. The method is characterized in that a polyvinylidene fluoride with stable chemical property as a substrate material is dissolved in strongly polar solvent with an ion liquid monomeric compound containingcarbon-carbon double bonds, such as 1-allyl-3-vinyl imidazole chloride, so as to prepare uniform solution after mixing; a film is prepared by a salivation method; and after heat treatment, the film triggers a monomer to perform a polymerization reaction, and forms the ion conducting film of the interpenetrating network with substrate high molecules. The conducting film can play a role of ionic conduction in electrodialysis, diffusion dialysis and electrochemical sensors. The conducting film material has simple preparation process, avoids using sulfonating agent and other strong oxidation substances in the preparing process, is advantageous to environmental protection, and simultaneously solves the problem that a homogeneous ionic conducting film cannot be obtained by the fusion method of ionic exchange resin.

The invention provides a pole piece which comprises a current collector, a first coating and second coatings, the surface of the current collector is coated with the first coating, and the surface, away from the current collector, of the first coating is coated with the at least two second coatings at intervals. According to the embodiment of the invention, the surface, far away from the current collector, of the first coating is coated with the at least two second coatings, so that the contact surface area of the pole pieces and electrolyte and the electric circulation area between the pole pieces can be increased, the combination direction between lithium ions and electrons is increased, the conduction impedance of the battery is reduced, lithium precipitation of the battery is inhibited, and the service life of the battery is prolonged. And the service life of the battery is prolonged.

The invention provides a method for preparing a high-flux reverse osmosis membrane, comprising the following steps: Step 1, making a support structure; Step 2, depositing a nano-calcium carbonate layer on the support structure; Step 3, depositing a nano-calcium carbonate layer on the The interfacial polymerization reaction on the support structure forms a reverse osmosis membrane containing a polyamide functional layer. The invention improves the surface roughness of the support layer by in-situ depositing nano-calcium carbonate on the surface of the support structure, which is beneficial to the adsorption of the aqueous phase solution. The growth of the polyamide reduces the depth of the polyamide in the pores of the support structure, reduces the water conduction resistance, and improves the flux of the reverse osmosis membrane. The invention also provides a high-flux reverse osmosis membrane, the water flux of the high-flux reverse osmosis membrane is 79-123LMH, and the desalination rate is 95.74-99.39%.